368509308644 has 6 divisors (see below), whose sum is σ = 644891290134. Its totient is φ = 184254654320.

The previous prime is 368509308641. The next prime is 368509308691. The reversal of 368509308644 is 446803905863.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 309503068900 + 59006239744 = 556330^2 + 242912^2 .

It is a super-2 number, since 2×368509308644² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 368509308644.

It is not an unprimeable number, because it can be changed into a prime (368509308641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 46063663577 + ... + 46063663584.

It is an arithmetic number, because the mean of its divisors is an integer number (107481881689).

Almost surely, 2^368509308644 is an apocalyptic number.

It is an amenable number.

368509308644 is a deficient number, since it is larger than the sum of its proper divisors (276381981490).

368509308644 is a wasteful number, since it uses less digits than its factorization.

368509308644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92127327165 (or 92127327163 counting only the distinct ones).

The product of its (nonzero) digits is 14929920, while the sum is 56.

The spelling of 368509308644 in words is "three hundred sixty-eight billion, five hundred nine million, three hundred eight thousand, six hundred forty-four".